<template>
    <div>
        <!-- 面包屑导航区域 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图区域 -->
        <el-card>
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" clearable @clear="getGoodsList" v-model="queryInfo.query">
                        <el-button slot="append" @click="getGoodsList" icon="el-icon-search"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="goAddpage">添加商品</el-button>
                </el-col>
            </el-row>

            <!-- table表格区域 -->
            <el-table :data="goodslist" border stripe>
                <el-table-column label="#" type="index"></el-table-column>
                <el-table-column label="商品名称" prop="goods_name"></el-table-column>
                <el-table-column width="95px" label="商品价格(元)" prop="goods_price"></el-table-column>
                <el-table-column width="70px" label="商品重量" prop="goods_weight"></el-table-column>
                <el-table-column width="140px" label="创建时间" prop="add_time">
                    <template slot-scope="scope">
                        {{scope.row.add_time | dateFormat}}
                    </template>
                </el-table-column>
                <el-table-column label="重置" width="130px">
                    <template slot-scope="scope">
                        <el-button type="primary" size="mini" icon="el-icon-edit"></el-button>
                        <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeById(scope.row.goods_id)"></el-button>
                    </template>
                </el-table-column>
            </el-table>

            <!-- 分页区域 -->
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[5, 10, 15, 20]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total"
                background
            >
            </el-pagination>
        </el-card>
    </div>
</template>

<script>
    export default {
        data(){
            return{
                queryInfo:{
                    query: '',
                    pagenum: 1,
                    pagesize: 9
                },
                // 商品列表
                goodslist:[],
                // 分页数据
                total:0
            }
        },
        created(){
            this.getGoodsList()
        },
        methods:{
            // 根据分页获取对应的商品列表
            async getGoodsList(){
                const {data:res} = await this.$http.get('goods',{params:this.queryInfo})
                if(res.meta.status !== 200){
                    return this.$message.error('获取商品列表失败！')
                }
                // this.$message.success('获取商品列表成功')
                this.goodslist = res.data.goods
                this.total = res.data.total
            },

            handleSizeChange(newSize){
                this.queryInfo.pagesize = newSize
                this.getGoodsList()
            },
            handleCurrentChange(newPage){
                this.queryInfo.pagenum = newPage
                this.getGoodsList()
            },

            // 编辑
            async removeById(id){
                // 弹框询问用户是否继续
                const confirmResult = await this.$confirm('此操作将永久删除该参数, 是否继续?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).catch(err => err)
                // 如果用户确认删除，返回值字符串 confirm
                // 如果用户取消删除，返回值字符串 cancel
                if(confirmResult !== 'confirm'){
                    return this.$message.info('已经取消删除参数')
                }
                // api
                const {data:res} = await this.$http.delete(`goods/${id}`)
                if(res.meta.status !== 200){
                     return this.$message.error('删除商品失败')
                }
                this.$message.success('删除商品成功')
                // 加载数据
                this.getGoodsList()
            },

            // 跳转页面
            goAddpage(){
                this.$router.push('/goods/list/add')
            }
        }
    }
</script>

<style lang="less" scoped>

</style>
